Postfix legacy release 2.8.8

Postfix legacy release 2.8.8 is available. This contains fixes
that are already part of Postfix 2.9 and 2.10.

The Postfix sqlite client, introduced with Postfix 2.8,
had an embarassing bug in its quoting routine. As the result of a
last-minute code cleanup before release, this routine returned the
unquoted text instead of the quoted text. The opportunities for
mis-use are limited: Postfix sqlite database files are usually owned
by root, and Postfix daemons usually run with non-root privileges
so they can't corrupt the database. This problem was reported by
Rob McGee (rob0).

The Postfix 2.8.4 fix for local delivery agent database
lookup errors was incomplete. The fix correctly added new code to
detect database lookup errors with mailbox_transport_maps,
mailbox_command_maps or fallback_transport_maps, but it failed to
log the problem, and to produce a defer logfile record which is
needed for "delayed mail" and "mail too old" delivery status
notifications.

The trace(8) service, used for DSN SUCCESS notifications,
did not distinguish between notifications for a non-bounce or a
bounce message, causing it to "reply" to mail with the null sender
address. Problem reported by Sabahattin Gucukoglu.

Support for Dovecot auth over TCP sockets, using code that
already existed for testing purposes. Patrick Koetter kindly provided
an update for the SASL_README file.

Workaround in the LDAP client for changes in the
under-documented OpenLDAP API, by Victor Duchovni.